Half the weight, half the glass, one eye · review
A right-angle 20-60x spotting monocular sold with an AZ mount, a carry bag and a phone adapter, publishing a 60 mm objective, BaK4 prism, field, eye relief and exit pupil figures that do not agree with each other.
The description publishes the objective (60 mm), the zoom (20-60x), the field (114 to 57 ft at 1000 yd), the eye relief (13 to 16 mm), the close focus (8 m), the prism (BaK4), the coating (broadband green multi-layer) and an eyepiece diameter of 15 mm. An AZ mount, a carry bag and a phone adapter are included.
The exit pupil is given as 4.1 to 1.4 mm. A 60 mm objective at 20x gives 3.0 mm, and at 60x 1.0 mm. Either the objective is bigger than 60 mm or the exit pupils are wrong. The rest of the listing does not settle it.
The title calls it catadioptric, a mirror-and-lens design. The description describes a BaK4 prism and a zoom, which is a conventional spotting scope.
Find a target at 20x, then zoom in, as the listing suggests. On the mount, 20x to 40x is the range that stays bright. For a spotting scope with fewer contradictions, see the spotting scopes shelf.
On November 7, 2026, Amazon.com listed it at about $138 from a third-party seller.
Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.
Prices quoted in this text were read on November 7, 2026. The live price is at the top of the page.
Same aisle, closest price — what the same spend else shows.
| Aperture | 60 mm, stated in the description |
|---|---|
| Magnification | 20x to 60x zoom |
| Exit pupil | Stated as 4.1 to 1.4 mm · 60 mm divided by 20x and 60x gives 3.0 to 1.0 mm, so the two figures cannot both be right |
| True field of view | 114 to 57 ft at 1000 yd (38 to 19 m at 1000 m), stated |
| Close focus | 8 m (26 ft), stated as visual distance |
| Prism | BaK4 · right-angle eyepiece |
| Coatings | Full multi-layer broadband green antireflection film |
| Sealing | Not published by the maker. |
| Weight | Not published by the maker. |
| Phone adapter fit | Phone clip included · eyepiece diameter 15 mm, stated |
| Supplied accessories | AZ mount · carry bag · phone adapter |
| Amazon reference | B0H945JNMV |
| EAN | 9176874930222 |
A 60 mm objective at 20x gives a 3 mm exit pupil; 4.1 mm would need about 82 mm. Either the objective is larger than stated or the exit pupils are wrong. Ask the seller before buying.
The title says catadioptric, but the listing describes a BaK4 prism and an ordinary zoom spotting-scope layout. Treat it as a spotting scope.
Yes, the listing names lunar craters. Use the low end of the zoom on the mount; at 60x the image dims.
This model is listed on Amazon.com, at ≈ $138 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 7, 2026.
Daytime wildlife and landscape viewing with lunar use as a secondary
Specifications: the manufacturer sheet for telescopes and observing optics and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
12x · 50 mm (1.97 in) · BAK-4 · UR and full multi-coating · waterproof, nitrogen-filled · 435 g (15.3 oz)
Bresser's Wave 12x50 roof-prism monocular: BAK-4 glass, UR and full multi-layer coatings, a twist-up eyecup for glasses, rubber armor and a waterproof nitrogen-filled body, published at 435 g.
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10–30x zoom · 40 mm (1.57 in) · BAK4 prism · fully multi-coated · nitrogen-filled · 153 mm long
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Best for: Daytime viewing where one instrument has to cover several distances
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12x · 55 mm (2.17 in) · 352 ft at 1000 yd · 4.58 mm exit pupil · 18 mm BAK4 · IPX7 · tripod and phone adapter
Gosky's Piper 12x55: an 18 mm BAK4-prism monocular with fully multi-coated optics, a 352 ft field at 1000 yd, a 4.58 mm exit pupil, an IPX7 nitrogen-filled body, a tripod and a smartphone adapter.
Best for: Birdwatching and dusk viewing where the extra objective earns its weight
≈ $89
